<template>
  <div>
    <div class="table-toolbar" v-if="hasToolbar">
      <div class="table-toolbar-left">
        <slot name="toolbarBtn"></slot>
      </div>
      <div class="table-toolbar-right flex-center">
        <template v-if="multipleSelection.length > 0">
          <el-tooltip effect="dark" content="删除选中" placement="top">
            <el-icon
              class="columns-setting-icon"
              @click="delSelection(multipleSelection)"
            >
              <Delete />
            </el-icon>
          </el-tooltip>
          <el-divider direction="vertical" />
        </template>
        <el-tooltip effect="dark" content="刷新" placement="top">
          <el-icon class="columns-setting-icon" @click="refresh">
            <Refresh />
          </el-icon>
        </el-tooltip>
        <el-divider direction="vertical" />
        <el-tooltip effect="dark" content="列设置" placement="top">
          <el-dropdown :hide-on-click="false" size="small" trigger="click">
            <el-icon class="columns-setting-icon">
              <Setting />
            </el-icon>
            <template #dropdown>
              <el-dropdown-menu>
                <el-dropdown-item v-for="c in columns">
                  <el-checkbox v-model="c.visible" :label="c.label" />
                </el-dropdown-item>
              </el-dropdown-menu>
            </template>
          </el-dropdown>
        </el-tooltip>
      </div>
    </div>
    <el-table
      class="mgb20"
      :style="{ width: '100%' }"
      border
      :data="tableData"
      :row-key="rowKey"
      @selection-change="handleSelectionChange"
      table-layout="auto"
    >
      <template v-for="item in columns" :key="item.prop">
        <el-table-column
          v-if="item.visible"
          :prop="item.prop"
          :label="item.label"
          :width="item.width"
          :type="item.type"
          :align="item.align || 'center'"
        >
          <template #default="{ row, column, $index }" v-if="item.type === 'index'">
            {{ getIndex($index) }}
          </template>
          <template #default="{ row, column, $index }" v-if="!item.type">
            <slot :name="item.prop" :rows="row" :index="$index">
              <template v-if="item.prop == 'operator'">
                <el-button
                  type="warning"
                  size="small"
                  :icon="View"
                  @click="viewFunc(row)"
                >
                  查看
                </el-button>
                <el-button
                  type="primary"
                  size="small"
                  :icon="Edit"
                  @click="editFunc(row)"
                >
                  编辑
                </el-button>
                <el-button
                  type="danger"
                  size="small"
                  :icon="Delete"
                  @click="handleDelete(row)"
                >
                  删除
                </el-button>
              </template>
              <span v-else-if="item.formatter">
                {{ item.formatter(row[item.prop]) }}
              </span>
              <span v-else>
                {{ row[item.prop] }}
              </span>
            </slot>
          </template>
        </el-table-column>
      </template>
    </el-table>
    <el-pagination
      v-if="hasPagination"
      :current-page="currentPage"
      :page-size="pageSize"
      :background="true"
      :layout="layout"
      :total="total"
      @current-change="handleCurrentChange"
    />
  </div>
</template>

<script lang="ts">
import { Delete, Edit, View, Refresh, Setting } from "@element-plus/icons-vue";
import { ElMessageBox } from "element-plus";
import { PropType, ref } from "vue";

export default {
  name: "TableCustom",
  components: {
    Delete,
    Edit,
    View,
    Refresh,
    Setting,
  },
  props: {
    // 表格相关
    tableData: {
      type: Array,
      default: () => [],
    },
    columns: {
      type: Array as PropType<any[]>,
      default: () => [],
    },
    rowKey: {
      type: String,
      default: "id",
    },
    hasToolbar: {
      type: Boolean,
      default: true,
    },
    //  分页相关
    hasPagination: {
      type: Boolean,
      default: true,
    },
    total: {
      type: Number,
      default: 0,
    },
    currentPage: {
      type: Number,
      default: 1,
    },
    pageSize: {
      type: Number,
      default: 10,
    },
    layout: {
      type: String,
      default: "total, prev, pager, next",
    },
    delFunc: {
      type: Function,
      default: () => {},
    },
    viewFunc: {
      type: Function,
      default: () => {},
    },
    editFunc: {
      type: Function,
      default: () => {},
    },
    delSelection: {
      type: Function,
      default: () => {},
    },
    refresh: {
      type: Function,
      default: () => {},
    },
    changePage: {
      type: Function,
      default: () => {},
    },
    loading: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      multipleSelection: [],
    };
  },
  mounted() {
    this.columns.forEach((item) => {
      if (item.visible === undefined) {
        item.visible = true;
      }
    });
  },
  methods: {
    handleSelectionChange(selection) {
      this.multipleSelection = selection;
    },
    handleCurrentChange(val) {
      this.changePage(val);
    },
    handleDelete(row) {
      ElMessageBox.confirm("确定要删除吗？", "提示", {
        type: "warning",
      })
        .then(async () => {
          this.delFunc(row);
        })
        .catch(() => {});
    },
    getIndex(index) {
      return index + 1 + (this.currentPage - 1) * this.pageSize;
    },
  },
};
</script>

<style scoped>
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 10px;
}

.columns-setting-icon {
  font-size: 20px;
  cursor: pointer;
  color: #999;
}

.columns-setting-icon:hover {
  color: var(--el-color-primary);
}

.flex-center {
  display: flex;
  align-items: center;
}
</style>

<style>
.table-header .cell {
  color: #333;
}
</style>
